Medusa
| Name | Medusa |
| Type | Submarine |
| GRT | 245 tons |
| Country |  Italian |
| Built | |
| Builder | |
| Operator | |
| History |
U-boat attacks on Submarine Medusa
| Date | U-boat | Route | Cargo | Loss type | |
| 1 | 10 Jun, 1915 | UB 15 (Heino von Heimburg) | Sunk | ||
| Casualties | Position | Location | Notes | ||
| , | Med. Sea | ||||
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